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US 5,183,633 AGranted
Steel having improved weldability and method thereof
AssigneeSollac
InventorsMaurickx Thierry, Verrier Pascal, Taillard Roland
Life of this patent
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Abstract
The present invention relates to a steel having improved weldability exhibiting good cracking resistance for high welding energies, good low-temperature toughness and requiring no preheating before welding. The composition by weight of the steel is the following: 0.07 to 0.11% carbon, 1.40 to 1.70% manganese, 0.20 to 0.55% nickel, 0 to 0.30% copper, 0 to 0.02% niobium, 0.005 to 0.020% titanium, 0.002 to 0.006% nitrogen, 0 to 0.15% silicon, the balance being iron.
Claims4
Steel having improved weldability, comprising, by weight;
- 0.07 to 0.11% carbon,
- 1.40 to 1.70% manganese,
- 0.20 to 0.55% nickel,
- 0 to 0.30% copper,
- 0 to 0.02 niobium,
- 0. 005 to 0.20% titanium,
- 0.002 to 0.006% nitrogen,
- 0 to 0.15% silicon,
- the balance being iron.
6 more elements
Dependencies are inferred from the claim text.